Coronation Street: Cheat Peter Barlow gets careless as drinking spirals out of control

So when he walks into a hotel and spots the alcoholic at the bar he demands to know what he is doing there.

The drama unfolds after cheating Peter, whose wife Carla is having their first child, goes in search of a drink and bumps into his mistress Tina McIntyre.

Tina, played by Michelle Keegan, insists on accompanying him to the nearest hotel bar.

“This storyline is really going to kick off over the next few weeks.”

Soap source

But when she pops to the loo he sees Carla’s brother Rob walking into the hotel. Rob spots Peter and goes over to find out what he’s doing there.

Panicked, Peter tries to spin a story that he is meeting a client but it is clear he is on edge. Rob believes the story then makes his excuses and leaves just before Tina comes back to join Peter.

With the coast clear she sneaks out of the hotel and once again the cheating pair breathe a sigh of relief that they have not been caught.

But Rob knows Peter is up to something and starts keeping a close eye on him.

And when he catches Peter and Tina chatting in the Rovers’ ­backyard he confronts them.

He asks when they became so close and it’s obvious by their reaction Rob is on to something. But it’s not until he sees this moment between them, pictured above, that he seems to finally have the evidence he needs.